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Ontario Intl Airport offers nonstop flights to 17 cities. Every week, at least 476 domestic flights and 8 international flights depart from Ontario Intl Airport. Show more
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All 25 airports with direct flights to Ontario, California, USA. See flight times and what days of the week you can fly non-stop with American Airlines, Delta, Alaska Airlines and 8 other airlines to Ontario International Airport (ONT).
If traveling to Ontario, the cheapest city to fly from in the last 3 days was Dallas, with flights as low as $34 one-way and $38 round-trip. Flights from Seattle are the most searched and start at $48 for a return trip.
Find cheap tickets to Ontario from anywhere in California. KAYAK searches hundreds of travel sites to help you find cheap airfare and book the flight that suits you best. With KAYAK you can also compare prices of plane tickets for last minute flights to Ontario from anywhere in California.
Cheap Flights to Ontario, California: Search once on SeatGuru to compare prices from multiple travel sites and save big on Ontario flights.
